The Samsung Galaxy S21 series entered the market over two years ago and during that time Samsungdid a great job fixing any bugs and flaws. However, some issues may occur from time to time especially after major software updates. Unfortunately, we cannot say that the problem is unusual in this context.
Almost the same problem occurred on the Samsung flagship which is only 2 years old. users, System update possible They reported that pink-green lines suddenly appeared on their screens afterwards.
A user who raised the issue on the Samsung forums stated that he received “advice for $380 screen replacement”

After the May update, some users got stuck on the Galaxy S21 screen. a pink or green line appears he noted. This line seems to be more of an issue with Galaxy S20 models. This problem is believed to be caused by hardware or software.
A user has requested technical assistance in the Samsung community to resolve the pink line issue on his Galaxy S21 Ultra. They were advised to replace the screen, which is approx. for 380 dollars corresponds.

In the comments, users 80% reported having the same problem. This indicates that there is a defect in the hardware or software of the devices. Another user reported that his Galaxy S21 Plus got a pink line after running the May update. Not only did one line appear on some users’ screens, two or more lines appeared.
Following this strange screen replacement advice, Samsung said it will not victimize affected users. has communicated directly to the users that it will make a free change.. However, no official statement has yet been released to the public.